Title:
HOLOGRAM GRATING ELEMENT AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2003121650
Kind Code:
A
Abstract:
To provide a hologram grating element which can be used as a polarization separation element having a high contrast ratio and to provide a method for manufacturing the element.
The hologram grating element 1 has optically anisotropic patterns 3 arranged in a specified period, and each pattern 3 consists of a single phase in which a liquid crystal core part 7 (molecular structure part showing the liquid crystal phase) is aligned in one direction. An isotropic material layer 5 made of an optically isotropic material is disposed between the patterns 3.
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Inventors:
TAKANASHI HIDEHIKO
Application Number:
JP2001313582A
Publication Date:
April 23, 2003
Filing Date:
October 11, 2001
Export Citation:
Assignee:
SONY CORP
International Classes:
G02B5/32; G02F1/13; (IPC1-7): G02B5/32; G02F1/13
Attorney, Agent or Firm:
Kuninori Funabashi